instrumentation模拟很多activity的操作

 

android.app.Instrumentation好像原来是用来做测试的,

可以用来模拟很多activity的操作

主要代码如下

如果在文本框中输入24,或者25

点击按钮就能模拟音量加减键

键值可以查看android.view.KeyEvent

 package com.qefee.testinstrumentation;

 import android.app.Activity;
 import android.app.Instrumentation;
 import android.os.Bundle;
 import android.view.KeyEvent;
 import android.view.View;
 import android.widget.Button;
 import android.widget.EditText;
 import android.widget.TextView;
 import android.widget.Toast;

 public class MainActivity extends Activity {
     TextView tv_showkey;
     Button btn_submit;
     EditText et_keycode;
     Instrumentation instrumentation;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);

         instrumentation = new Instrumentation();
         getViews();

         // 通过按钮点击,模拟事件
         btn_submit.setOnClickListener(new View.OnClickListener() {

             @Override
             public void onClick(View v) {
                 et_keycode.clearFocus();
                 btn_submit.requestFocus();
                 String keycodeStr = et_keycode.getText().toString();

                 if (keycodeStr == null || "".equals(keycodeStr)) {
                     Toast.makeText(MainActivity.this, "please input a keycode",
                             Toast.LENGTH_SHORT).show();
                     return;
                 }

                 final int keycode = Integer.parseInt(keycodeStr);

                 // 必需在线程中运行,否者报错
                 Thread t = new Thread(new Runnable() {

                     @Override
                     public void run() {
                         instrumentation.sendKeyDownUpSync(keycode);
                     }
                 });
                 t.start();

             }
         });
     }

     /**
      *
      */
     private void getViews() {
         tv_showkey = (TextView) findViewById(R.id.tv_showcode);
         btn_submit = (Button) findViewById(R.id.btn_submit);
         et_keycode = (EditText) findViewById(R.id.et_keycode);
     }

     @Override
     public boolean onKeyDown(int keyCode, KeyEvent event) {
         boolean onKeyDown = super.onKeyDown(keyCode, event);
         tv_showkey.setText("des = " + KeyEvent.keyCodeToString(keyCode)
                 + " : code = " + keyCode);
         System.out.println(event);
         // System.out.println(event.getAction());
         // System.out.println(event.getCharacters());
         // System.out.println(event.getDeviceId());
         // System.out.println(event.getDisplayLabel());
         // System.out.println(event.getDownTime());
         // System.out.println(event.getEventTime());
         // System.out.println(event.getFlags());
         // System.out.println(event.getKeyCode());
         //
         // System.out.println(KeyEvent.keyCodeToString(keyCode));

         return onKeyDown;
     }
 }